CN201699087U - Power lithium battery with plastic casing with upper cover with safe sealing device - Google Patents
Power lithium battery with plastic casing with upper cover with safe sealing device Download PDFInfo
- Publication number
- CN201699087U CN201699087U CN2010201609993U CN201020160999U CN201699087U CN 201699087 U CN201699087 U CN 201699087U CN 2010201609993 U CN2010201609993 U CN 2010201609993U CN 201020160999 U CN201020160999 U CN 201020160999U CN 201699087 U CN201699087 U CN 201699087U
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- CN
- China
- Prior art keywords
- spiral
- casing
- cover
- lithium battery
- sealing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Filling, Topping-Up Batteries (AREA)
Abstract
The utility model relates to a power lithium battery with a plastic casing with an upper cover with a safe sealing device, which comprises a plastic casing comprising an upper cover and a lower casing, a spiral casing which is fixedly connected at the position of a corresponding liquid injection port at the upper surface of the upper cover and an upper spiral cover which is spirally connected with the spiral casing. The power lithium battery with the plastic casing with the upper cover with the safe sealing device is characterized in that a sealing rubber pad with corrosion resistance is arranged between the bottoms of the internal screw threads of the spiral casing and the upper spiral cover. The utility model has the advantages that the sealing rubber pad with corrosion resistance is arranged between the spiral casing at the position of the corresponding liquid injection port at the upper surface of the upper cover and the upper spiral cover which is spirally connected with the spiral casing, the electrolyte of the battery and the spiral casing are partitioned under the pressure of the upper spiral cover, and the liquid injection port of the battery can be tightly sealed by coating bonding glue at the threaded position of the upper spiral cover and the spiral casing; the upper spiral cover is provided with a spherical rubber pressure safety valve; when the internal pressure of the power battery is overlarge, the internal gas pressure pushes the spherical valve for releasing gas to decrease the internal pressure; and when the internal pressure is lower than a certain numerical value, the spherical valve is closed. The utility model can release the gas, decrease the internal pressure of the battery and enhance the safety.
Description
Technical field
The utility model belongs to dynamic lithium battery, and what relate in particular to that a kind of loam cake has a safety sealing device moulds the shell dynamic lithium battery.
Background technology
The liquid injection port that covers on the lithium battery of conventional metal shell is to tighten sealing with bolt.The current driving force lithium battery is brought into use the environment-friendly type plastic shell, on the liquid injection port that covers tighten sealing with bolt, on the screw thread rapid wear that covers, then the somewhere leakage can appear, cause the monoblock battery to be scrapped; The industry begins to try out at the bonding shaped spiral housing in the corresponding liquid injection hole position of loam cake, the coating adhesive and the screw lid that spins on shaped spiral housing again.Its shortcoming is: the electrolyte of lithium battery all has corrosion and solvation to any adhesive of bonding housing, the somewhere leakage can occur, causes the monoblock battery to be scrapped.Therefore influence dynamic lithium battery and adopted promoting the use of of environment-friendly type plastic shell.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and provide that a kind of loam cake has a safety sealing device mould the shell dynamic lithium battery, settle corrosion resistant rubber blanket, battery electrolyte and shell are cut off, coat adhesive glue at the screw thread place of last screw lid and shaped spiral housing and the battery liquid-filling mouth can be shut; Last screw lid is provided with the pressure safety valve of spherical rubber, can discharge gas, reduces inner pressure of battery, improves fail safe.
The utility model for achieving the above object, by the following technical solutions: what a kind of loam cake had a safety sealing device moulds the shell dynamic lithium battery, the shell of moulding that comprises loam cake and lower house formation, be fixed in the shaped spiral housing of the corresponding liquid injection port of loam cake upper surface position and the last screw lid that is spirally connected with it, it is characterized in that: be provided with corrosion resistant seal gasket between described shaped spiral housing internal thread bottom and the last screw lid.
The center of the relative liquid injection port of described seal gasket is provided with frustum of a cone projection.
Described upward screw lid center is provided with the cylindrical circular hole of indent, and circular hole is built-in with spring, spring lower end and the spherical rubber bead crimping that places on the liquid injection port, and described top of going up screw lid is provided with the venthole that communicates with the indent circular hole.
Beneficial effect: the shaped spiral housing of the corresponding liquid injection port of loam cake upper surface position and and its be spirally connected on be provided with corrosion resistant seal gasket between the screw lid, battery electrolyte and shaped spiral housing are cut off, coat adhesive glue at the screw thread place of last screw lid and shaped spiral housing and the battery liquid-filling mouth can be shut; Last screw lid is provided with the pressure safety valve of spherical rubber, and when pressing in the electrokinetic cell when excessive, internal gas pressure backs down ball valve and discharges gas and reduce interior pressure, in force down in the certain numerical value ball valve and close.Can discharge gas, reduce inner pressure of battery, improve fail safe.
Description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the structural representation of embodiment 2.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in the figure,
Embodiment 1
What a kind of loam cake had a safety sealing device moulds the shell dynamic lithium battery, the shell of moulding that comprises loam cake 1 and lower house 2 formations, be fixed in the shaped spiral housing 4 of the corresponding liquid injection port of loam cake upper surface 3 positions and the last screw lid 5 that is spirally connected with it, be provided with corrosion resistant seal gasket 6 between described shaped spiral housing internal thread bottom and the last screw lid.The center of the relative liquid injection port of described seal gasket is provided with frustum of a cone 6-1 projection.Battery electrolyte and shaped spiral housing are cut off, coat adhesive glue at the screw thread place of last screw lid and shaped spiral housing and the battery liquid-filling mouth can be shut;
Embodiment 2
What a kind of loam cake had a safety sealing device moulds the shell dynamic lithium battery, the shell of moulding that comprises loam cake 1 and lower house 2 formations, be fixed in the shaped spiral housing 4 of the corresponding liquid injection port of loam cake upper surface 3 positions and the last screw lid 5 that is spirally connected with it, described upward screw lid center is provided with the cylindrical circular hole 7 of indent, circular hole is built-in with spring 8, spring lower end and spherical rubber bead 9 crimping that place on the liquid injection port, described top of going up screw lid is provided with the venthole 10 that communicates with the indent circular hole.Last screw lid is provided with the pressure safety valve of spherical rubber, and when pressing in the electrokinetic cell when excessive, internal gas pressure backs down ball valve and discharges gas and reduce interior pressure, in force down in the certain numerical value ball valve and close.Can discharge gas, reduce inner pressure of battery, improve fail safe.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. what a loam cake had a safety sealing device moulds the shell dynamic lithium battery, the shell of moulding that comprises loam cake and lower house formation, be fixed in the shaped spiral housing of the corresponding liquid injection port of loam cake upper surface position and the last screw lid that is spirally connected with it, it is characterized in that: be provided with corrosion resistant seal gasket between described shaped spiral housing internal thread bottom and the last screw lid.
2. what loam cake according to claim 1 had a safety sealing device moulds the shell dynamic lithium battery, and it is characterized in that: the center of the relative liquid injection port of described seal gasket is provided with frustum of a cone projection.
3. what loam cake according to claim 1 had a safety sealing device moulds the shell dynamic lithium battery, it is characterized in that: described upward screw lid center is provided with the cylindrical circular hole of indent, circular hole is built-in with spring, spring lower end and the spherical rubber bead crimping that places on the liquid injection port, described top of going up screw lid is provided with the venthole that communicates with the indent circular hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010201609993U CN201699087U (en) | 2010-04-16 | 2010-04-16 | Power lithium battery with plastic casing with upper cover with safe sealing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010201609993U CN201699087U (en) | 2010-04-16 | 2010-04-16 | Power lithium battery with plastic casing with upper cover with safe sealing device |
Publications (1)
Publication Number | Publication Date |
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CN201699087U true CN201699087U (en) | 2011-01-05 |
Family
ID=43400333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010201609993U Expired - Fee Related CN201699087U (en) | 2010-04-16 | 2010-04-16 | Power lithium battery with plastic casing with upper cover with safe sealing device |
Country Status (1)
Country | Link |
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CN (1) | CN201699087U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102208585A (en) * | 2011-04-28 | 2011-10-05 | 浙江谷神能源科技股份有限公司 | Safety valve for lithium ion battery |
-
2010
- 2010-04-16 CN CN2010201609993U patent/CN201699087U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102208585A (en) * | 2011-04-28 | 2011-10-05 | 浙江谷神能源科技股份有限公司 | Safety valve for lithium ion battery |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20120416 |